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package Unit05;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

/**
 *
 * @author Administrator
 */
public class IO {
    public static void main(String[] args) throws IOException {
        
        InputStreamReader in2 =new InputStreamReader(System.in);
        BufferedReader in3=new BufferedReader(in2);
        
        
        System.out.print("请输入第一个数:");
        float first=Float.parseFloat(in3.readLine());
        System.out.println();
        System.out.print("请输入第二个数:");
        float second=Float.parseFloat(in3.readLine());
         System.out.print("请输入第三个数:");
        float third=Float.parseFloat(in3.readLine());
        System.out.println("这三个数的和是:");
        System.out.println(first+second+third);
        
        
        
       
    }

}
